[Heber J. Grant]
I recall that when you were in my office some days ago you inquired if it were necessary for brethren who officiate as temple workers to be ordained to the office of high priest, and I promised to give you a definite answer to your question at a later date. The brethren of the Twelve, with whom I have discussed this matter, agree with me that this is not necessary, except when they are called to do sealing work, and then they should be ordained high priests and specially set apart for that work.
[Heber J. Grant, Letter to Lewis R. Anderson, as quoted in Minutes of the Apostles of The Church of Jesus Christ of Latter-day Saints, 1910-1951, Privately Published, Salt Lake City, Utah 2010]